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CVE-2022-30256

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended...

7.5 HighFix available

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.97%Up 0.1 points since Nov 19, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
CVE-2022-30256
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-672
Updated
2026-11-02
CVE List 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
CVE-2022-30256
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-672
Updated
2026-11-02
EUVDEUVD-2022-35461 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
EUVD-2022-35461
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-qqpw-wxfv-vfcg 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended...

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
GHSA-qqpw-wxfv-vfcg
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-672
Updated
2026-11-02
OSV 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
CVE-2022-30256
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2022-30256 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
DEBIAN-CVE-2022-30256
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2022-30256 7.5

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Record
UBUNTU-CVE-2022-30256
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVUSN-6271-1 No score

maradns vulnerabilities

Xiang Li discovered that MaraDNS incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to obtain sensitive information. (CVE-2022-30256)

Huascar Tejeda discovered that MaraDNS incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-31137)

Record
USN-6271-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
maradns
Debian:11
before 2.0.13-1.4+deb11u1, plus listed versions
2.0.13-1.4
2.0.13-1.4+deb11u1
maradns
Debian:10
From an advisory covering 2 CVEs
before 2.0.13-1.2+deb10u1, plus listed versions
2.0.13-1.2
2.0.13-1.2+deb10u1
maradns
Debian:11
From an advisory covering 2 CVEs
before 2.0.13-1.4+deb11u1, plus listed versions
2.0.13-1.4
2.0.13-1.4+deb11u1
maradns
Ubuntu:Pro:16.04:LTS
before 2.0.13-1ubuntu0.1~esm1, plus listed versions
2.0.11-12.0.13-1
2.0.13-1ubuntu0.1~esm1
maradns
Ubuntu:Pro:18.04:LTS
before 2.0.13-1.2ubuntu0.1~esm1, plus listed versions
2.0.13-1.2
2.0.13-1.2ubuntu0.1~esm1
maradns
Ubuntu:20.04:LTS
before 2.0.13-1.4+deb11u1build0.20.04.1, plus listed versions
2.0.13-1.2build12.0.13-1.42.0.13-1.4build1
2.0.13-1.4+deb11u1build0.20.04.1
maradns
Ubuntu:22.04:LTS
before 2.0.13-1.4+deb11u1build0.22.04.1, plus listed versions
2.0.13-1.4build2
2.0.13-1.4+deb11u1build0.22.04.1
maradns
Ubuntu:Pro:16.04:LTS
From an advisory covering 2 CVEs
before 2.0.13-1ubuntu0.1~esm1, plus listed versions
2.0.11-12.0.13-1
2.0.13-1ubuntu0.1~esm1
maradns
Ubuntu:Pro:18.04:LTS
From an advisory covering 2 CVEs
before 2.0.13-1.2ubuntu0.1~esm1, plus listed versions
2.0.13-1.2
2.0.13-1.2ubuntu0.1~esm1
maradns
Ubuntu:20.04:LTS
From an advisory covering 2 CVEs
before 2.0.13-1.4+deb11u1build0.20.04.1, plus listed versions
2.0.13-1.2build12.0.13-1.42.0.13-1.4build1
2.0.13-1.4+deb11u1build0.20.04.1
maradns
Ubuntu:22.04:LTS
From an advisory covering 2 CVEs
before 2.0.13-1.4+deb11u1build0.22.04.1, plus listed versions
2.0.13-1.4build2
2.0.13-1.4+deb11u1build0.22.04.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-30256 is a high vulnerability (CVSS 7.5) in Maradns, published November 18, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 61st percentile. Fixed in maradns 2.0.13-1.4+deb11u1.

References

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